Note: Batteries and rechargeables not included, You need to bring your own. Warming Winter with Your Ideal Temperature: The heated vest has totally 5 heat panels distributed in abdomen and back. There are 3 adjustable heating levels: red: 15010, white: 13010, blue: 11010. The "Power" button is the switch of heating areas and different temp status. Customers can set according to your own demands. Ajustable Size & Unisex Design: Electric heating vests is designed for both men and women. Buy one, boys and girls can ware. On shoulders and both sides of vest, there are adjustable buckles and zippers so that you can change its position according to your needs and find the most suitable position. USB Charging, Quick & Long-lasting Warmth: Powered by any USB compitable power bank. USB plug compatible with most power bank on the market ( power bank NEED TO BE BOUGHT SEPARATELY). Heating up in seconds and keeping warming till your power bank turn off. The interior of warm vest is a comfortable and soft fabric that can improved heating effect and maintains the temperature. For Multiple Occasions: This thermal heating jacket is made from lightweight material, so it is perfect for outdoor activities like camping, hiking, skiing, fishing, hunting, office routine and business. You can put it in your coat so that you can keep warm and be decent. Its also a great Christmas gift for your family and friends, especially for elderly and outdoor lovers. Hand&Machine Washable, Great Service: The size adjustable heated jacket is easy to care. Both hand wash and machine wash are acceptable. Please Note: the wash water temperature need under 30C/86. Plug out the power bank before washing. We recommend you to wash it by hand to prolong the service life.